From owner-freebsd-questions@FreeBSD.ORG  Fri Mar 26 17:19:15 2010
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E8BF6106564A
	for <freebsd-questions@freebsd.org>;
	Fri, 26 Mar 2010 17:19:15 +0000 (UTC)
	(envelope-from corky1951@comcast.net)
Received: from qmta01.westchester.pa.mail.comcast.net
	(qmta01.westchester.pa.mail.comcast.net [76.96.62.16])
	by mx1.freebsd.org (Postfix) with ESMTP id 947178FC0A
	for <freebsd-questions@freebsd.org>;
	Fri, 26 Mar 2010 17:19:15 +0000 (UTC)
Received: from omta21.westchester.pa.mail.comcast.net ([76.96.62.72])
	by qmta01.westchester.pa.mail.comcast.net with comcast
	id xpLk1d0011ZXKqc51tKFnA; Fri, 26 Mar 2010 17:19:15 +0000
Received: from comcast.net ([98.203.142.76])
	by omta21.westchester.pa.mail.comcast.net with comcast
	id xtNV1d0031f6R9u3htNVXC; Fri, 26 Mar 2010 17:22:30 +0000
Received: by comcast.net (sSMTP sendmail emulation);
	Fri, 26 Mar 2010 10:19:12 -0700
Date: Fri, 26 Mar 2010 10:19:12 -0700
From: Charlie Kester <corky1951@comcast.net>
To: freebsd-questions@freebsd.org
Message-ID: <20100326171912.GE84718@comcast.net>
Mail-Followup-To: freebsd-questions@freebsd.org
References: <20100326071248.4ec4ea5e@scorpio.seibercom.net>
	<20100326113258.GA9957@catflap.slightlystrange.org>
	<20100326074456.7139c3da@scorpio.seibercom.net>
	<20100326154907.GC84718@comcast.net>
	<20100326162815.GD84718@comcast.net>
	<20100326130121.61267cd4@scorpio.seibercom.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <20100326130121.61267cd4@scorpio.seibercom.net>
X-Mailer: Mutt 1.5.20
X-Composer: VIM 7.2
User-Agent: Mutt/1.5.20 (2009-06-14)
Subject: Re: Creating multiple directories simultaneously
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 26 Mar 2010 17:19:16 -0000

On Fri 26 Mar 2010 at 10:01:21 PDT Jerry wrote:
>On Fri, 26 Mar 2010 09:28:15 -0700, Charlie Kester
><corky1951@comcast.net> articulated:
>
>> For extra credit, and to test your understanding, see if you can
>> explain how the following work:
>>
>> $ mkdir -p FOO/{foo-,bar-}{1,2,3}
>>
>> $ cp foo{,.bak}
>
>Maybe I am doing this wrong; however, I had to use the "-R" flag with
>'cp' to make it work. I also assume you meant "FOO" and not "foo"
>unless I am completely misunderstanding this exercise.

Sorry, pedagogical error.  I didn't intend that to operate on the
results of any of the other examples. I probably should have chosen
something other than 'foo' in order to avoid that misunderstanding.

The point was simply to explore what happens when one of the terms
inside the braces is an empty string.